Feldspar (Orthoclase)
Potassium Feldspar (KAlSi3O8)
Category
Browse metamorphic (modified) specimens identified by the Rock Identifier community.
Feldspar (Orthoclase)
Potassium Feldspar (KAlSi3O8)
Moonstone (Adularia)
Potassium aluminum silicate (KAlSi3O8)
Sapphire
Corundum (Al2O3)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Green Aventurine
Silicon dioxide (SiO2) with Fuchsite inclusions
Green Aventurine
Aventurine Quartz (SiO2 with inclusions of Fuchsite mica)
Green Aventurine
Silicon Dioxide (SiO2+KAl2(AlSi3O10)(OH)2)
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
Potassium Feldspar
Orthoclase (KAlSi3O8)
Milky Quartz on Matrix
Quartz (Silicon Dioxide, SiO2)
Pyrite-rich Ore
Pyrite (FeS2) with secondary minerals
Jadeite
NaAlSi2O6; Jadeite silicate mineral
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
Quartz Pebble
Silicon Dioxide (SiO2)
Aventurine
Silicon dioxide with micas (SiO2 + K(Al,Cr)2AlSi3O(OH)2)
Amethyst
SiO2 (Silicon Dioxide with Iron impurities)
Magnetite (in matrix)
Magnetite (Fe3O4)
Garnet (Pyrope or Almandine)
Silicate (X3Y2Si3O12)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Banded Agate
Silicon Dioxide (SiO2)
Blue Quartz
Quartz (Silicon Dioxide) with blue inclusions (SiO2)
Jade (Nephrite and Jadeite)
Nephrite: Ca2(Mg,Fe)5Si8O22(OH)2; Jadeite: NaAlSi2O6
Jadeite
NaAlSi2O6 (Sodium Aluminum Silicate)
Smoky Quartz
Silicon Dioxide (SiO₂)
Orthoclase Feldspar with Quartz
Orthoclase (KAlSi3O8)
Amazonite
K(AlSi3O8) - Potassium Aluminum Silicate
Biotite Mica in Quartz
Biotite (K(Mg,Fe)3AlSi3O10(F,OH)2) in Quartz (SiO2)
Quartz (Milky/Rose Quartz variety)
Silicon Dioxide (SiO2)
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
Rough Citrine Quartz
Silicon Dioxide (SiO2) with iron impurities
Yellow Citrine Quartz
Silicon Dioxide (SiO₂)
Hematite
Iron(III) oxide (Fe2O3)
Quartz (Common or Milky)
Silicon Dioxide (SiO2)
Bornite (Peacock Ore)
Bornite (Cu5FeS4)
Nephrite Jade
Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2)
Citrine
Silicon dioxide (SiO2)
Aquamarine
Beryl (Be3Al2Si6O18)
Yellow Aventurine (specifically a carved crescent moon)
Silicon Dioxide (SiO2) with inclusions
Smoky Quartz (with complementary stones in jewelry setting)
Smoky Quartz (Silicon Dioxide - SiO2)
Banded Agate (White Agate)
Chalcedony (Silicon Dioxide, SiO2)
Aquamarine
Beryl (Be3Al2Si6O18)